SLVT221 June   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
  7. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  8. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-up and Shutdown Sequence
  9.   Trademarks

Thermal Images

The thermal images presented in Figure 2-3 and Figure 2-4 are taken with a load of 37.5A at steady-state and with a fan blowing on the hardware. Figure 2-4 has an input voltage of 20Vin, where the LMG2100s experienced a rise of about 21.5°C above the ambient room temperature of 22°C. Figure 2-3 has an input voltage of 48Vin, where the LMG2100s experienced a rise of about 57°C, again measured relative to the ambient room temperature of 22°C.

PMP23611 48VIN, 37.5A
                        Thermal Image With FanFigure 2-3 48VIN, 37.5A Thermal Image With Fan
PMP23611 20VIN, 37.5A
                        Thermal Image With FanFigure 2-4 20VIN, 37.5A Thermal Image With Fan

The thermal images presented in Figure 2-6 and Figure 2-5 are taken with a load of 25A at steady-state and without a fan blowing on the hardware. Figure 2-6 has an input voltage of 20Vin, where the LMG2100s experienced a rise of about 39°C above the ambient room temperature of 22°C. Figure 2-5 has an input voltage of 48Vin, where the LMG2100s experienced a rise of about 71°C, again measured relative to the ambient room temperature of 22°C.

PMP23611 48VIN, 25A
                        Thermal Image Without FanFigure 2-5 48VIN, 25A Thermal Image Without Fan
PMP23611 20VIN, 25A
                        Thermal Image Without FanFigure 2-6 20VIN, 25A Thermal Image Without Fan

The thermal images presented in Figure 2-7 and Figure 2-8 are taken with a load of 50A at steady-state and with a fan blowing on the hardware. Figure 2-7 has an input voltage of 20Vin, where the LMG2100s experienced a rise of about 50°C above the ambient room temperature of 22°C. Figure 2-8 has an input voltage of 48Vin, where the LMG2100s experienced a rise of about 79°C, again measured relative to the ambient room temperature of 22°C.

PMP23611 20VIN, 50A
                        Thermal Image With FanFigure 2-7 20VIN, 50A Thermal Image With Fan
PMP23611 48VIN, 50A
                        Thermal Image With FanFigure 2-8 48VIN, 50A Thermal Image With Fan